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3VCZͷϋογϡςʔϒϧ ߴ଎ԽΛཧղ͢Δ /BP.JOBNJ !TPVUI

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ࣗݾ঺հ

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/BP.JOBNJ!TPVUI !NJOBNJP 4PGUXBSFFOHJOFFS !8BOUFEMZ *OD

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w 3VCZͱύϑΥʔϚϯε w 3VCZͰͷϋογϡςʔϒϧߴ଎ԽͱͦͷԸܙ w ߴ଎Խ͸Ͳ͏࣮ݱ͞Εͨͷ͔ʁ w ·ͱΊ ࠓ೔࿩͢಺༰

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w 3VCZͱύϑΥʔϚϯε w 3VCZͰͷϋογϡςʔϒϧߴ଎ԽͱͦͷԸܙ w ߴ଎Խ͸Ͳ͏࣮ݱ͞Εͨͷ͔ʁ w ·ͱΊ ࠓ೔࿩͢಺༰

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3VCZY

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w ೥·Ͱʹ3VCZ͸ഒ଎͘ͳΔCZ!NBU[ 3VCZͱύϑΥʔϚϯε w .VMUJ5ISFBE +*5 FUD w 3VCZY w 3VCZͰͷϋογϡςʔϒϧߴ଎Խ /&8

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w 3VCZͱύϑΥʔϚϯε w 3VCZͰͷϋογϡςʔϒϧߴ଎ԽͱͦͷԸܙ w ߴ଎Խ͸Ͳ͏࣮ݱ͞Εͨͷ͔ʁ w ·ͱΊ ࠓ೔࿩͢಺༰

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ϋογϡςʔϒϧߴ଎ԽͱͦͷԸܙ

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ϋογϡςʔϒϧߴ଎ԽͱͦͷԸܙ

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ϋογϡςʔϒϧߴ଎ԽͱͦͷԸܙ w 36#:#&/$) w ߴ଎Խ w ϝϞϦ࢖༻ྔ࡟ݮ 1000000.times.map{|i| a={}; 8.times{|j| a[j]=j}; a} IUUQTSVCZCFODIPSHSVCZSVCZSFMFBTFT SFTVMU@UZQFIBTI@TNBMM

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ϋογϡςʔϒϧߴ଎ԽͱͦͷԸܙ w QJDP@IUUQ@QBSTFS w ߴ଎Խ IUUQLB[FCVSPIBUFOBCMPHDPNFOUSZ ྘ʜ3VCZ ੨ʜ3VCZQSF

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ܶతʹ଎͘ͳͬͯΔ

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w 3VCZͱύϑΥʔϚϯε w 3VCZͰͷϋογϡςʔϒϧߴ଎ԽͱͦͷԸܙ w ߴ଎Խ͸Ͳ͏࣮ݱ͞Εͨͷ͔ʁ w ·ͱΊ ࠓ೔࿩͢಺༰

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ߴ଎Խ͸Ͳ͏࣮ݱ͞Εͨͷ͔ʁ w ϋογϡςʔϒϧͷিಥ࣌ͷڍಈΛมߋ $IBJOJOH 0QFO"ESFTTJOH w ϙΠϯτ͸ʮσʔλͷہॴੑͷ޲্ʯ

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σʔλͷہॴੑ͸ͳͥॏཁ͔ w 1SPDFTTPSʹ͸ଟஈΩϟογϡ͕ଘࡏ w ΩϟογϡʹIJU͢ΔͱύϑΥʔϚϯε޲্ $16 L# .BJO.FNPSZ -$BDIF -$BDIF -$BDIF .# (# L# # dOT IUUQTUBDLPWFSqPXDPNRVFTUJPOTBQQSPYJNBUFDPTUUPBDDFTTWBSJPVTDBDIFTBOENBJONFNPSZ dOT

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σʔλͷہॴੑ͸ͳͥॏཁ͔ w 1SPDFTTPSʹ͸ଟஈΩϟογϡ͕ଘࡏ w σʔλͷہॴੑ͕ॏཁ $16 L# .BJO.FNPSZ -$BDIF -$BDIF -$BDIF .# (# L# # dOT IUUQTUBDLPWFSqPXDPNRVFTUJPOTBQQSPYJNBUFDPTUUPBDDFTTWBSJPVTDBDIFTBOENBJONFNPSZ dOT

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0QFO"ESFTTJOHͰσʔλͷہॴੑ্͕͕Δͷ͸ͳͥʁ w $IBJOJOH 0QFO"ESFTTJOHͭͷΞϧΰϦζϜΛൺֱ w ૬ҧ఺ϋογϡςʔϒϧͷিಥ࣌ͷڍಈ w $IBJOJOH࿈݁ϦετΛḷͬͯ୳ࡧ w 0QFO"ESFTTJOH"SSBZ্ͰJOEFYΛม͑ͯ୳ࡧ w ڞ௨఺ w ϋογϡςʔϒϧ͸LFZͷIBTI஋ΛJOEFYʹར༻

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$IBJOJOHͷ࢓૊Έ w UBCMF͸࿈݁Ϧετ΁ͷϙΠϯλΛอ࣋ w ಉ͡IBTIΛ࣋ͭ৔߹͸ɺ࿈݁ϦετΛḷΔ IUUQXXXBMHPMJTUOFU%BUB@TUSVDUVSFT)BTI@UBCMF$IBJOJOH FOUSZ UBCMF LFZ

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$IBJOJOHͷ໰୊఺ w ࿈݁ϦετͷFOUSZ͸ɺNFNPSZ্Ͱ཭Εͯ഑ஔ w σʔλͷہॴੑ͕௿͍ FOUSZ UBCMF LFZ

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3VCZҎલͷ$IBJOJOH w ૒ํ޲Ϧετʹͳ͓ͬͯΓɺσʔλͷہॴੑ͕௿͍ ͚ͩͰͳ͘QSFWϙΠϯλͳͲͷ෼͚ͩFOUSZͷσʔ λ͕Ͱ͔͍ͷ΋໰୊ IUUQTEFWFMPQFSTSFEIBUDPNCMPHUPXBSETGBTUFSSVCZIBTIUBCMFT UBCMF FOUSZ FOUSZ FOUSZ

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3VCZҎલͷ$IBJOJOH w ૒ํ޲Ϧετʹͳ͓ͬͯΓɺσʔλͷہॴੑ͕௿͍ ͚ͩͰͳ͘QSFWϙΠϯλͳͲͷ෼͚ͩFOUSZͷσʔ λ͕Ͱ͔͍ͷ΋໰୊ IUUQTEFWFMPQFSTSFEIBUDPNCMPHUPXBSETGBTUFSSVCZIBTIUBCMFT UBCMF FOUSZ FOUSZ FOUSZ ஗͍

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0QFO"ESFTTJOHͷ࢓૊Έ w UBCMF͸FOUSZ΁ͷQPJOUFSΛ௚઀อ࣋ w ಉ͡IBTIΛ࣋ͭ৔߹͸ɺJOEFYΛͣΒ͢ FOUSZ UBCMF LFZ IUUQXXXBMHPMJTUOFU%BUB@TUSVDUVSFT)BTI@UBCMF0QFO@BEESFTTJOH

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3VCZͷ0QFO"ESFTTJOH UBCMF FOUSJFT TUBSU CPVOE w UBCMF FOUSJFT͕྆ํ"SSBZʹͳ͓ͬͯΓσʔλͷہॴ ੑ͕ߴ͘ɺͭͭͷFOUSZͷσʔλαΠζ΋খ͍͞ IUUQTEFWFMPQFSTSFEIBUDPNCMPHUPXBSETGBTUFSSVCZIBTIUBCMFT

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3VCZͷ0QFO"ESFTTJOH UBCMF FOUSJFT TUBSU CPVOE w UBCMF FOUSJFT͕྆ํ"SSBZʹͳ͓ͬͯΓσʔλͷہॴ ੑ͕ߴ͘ɺͭͭͷFOUSZͷσʔλαΠζ΋খ͍͞ ߴ଎Խ

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3VCZͰ͸ߋʹࡉ͔͘࠷దԽ w ݅਺͕গͳ͍࣌ͷ࠷దԽʢলϝϞϦɺߴ଎Խʣ w ݅਺͕গͳ͍࣌͸BSSBZͭͰMJOFBSTFBSDI w ݅਺͕গͳ͍࣌͸CJU CJUͳͲͰJOEFYΛදݱ w 'VMMDZDMFMJOFBSDPOHSVFOUJBMHFOFSBUPSΛ TFDPOEBSZIBTIͱͯ͠ར༻ w ߴ଎͔ͭIBTIͱͯ͠ͷੑೳ΋ྑ͍

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w 3VCZͱύϑΥʔϚϯε w 3VCZͰͷϋογϡςʔϒϧߴ଎ԽͱͦͷԸܙ w ߴ଎Խ͸Ͳ͏࣮ݱ͞Εͨͷ͔ʁ w ·ͱΊ ࠓ೔࿩͢಺༰

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·ͱΊ w 3VCZ͸ϋογϡςʔϒϧ͕ܶతʹߴ଎Խɻ࣮ࡍ ʹΞϓϦέʔγϣϯ΋ߴ଎Խɻ w 3VCZʹͯ͠շదͳ3VCZϥΠϑΛૹΖ͏ʂ

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ࢀߟϦϯΫ w 3VCZϦϦʔε w IUUQTXXXSVCZMBOHPSHKBOFXT SVCZSFMFBTFE w 'FBUVSF)BTIUBCMFTXJUIPQFOBESFTTJOH w IUUQTCVHTSVCZMBOHPSHJTTVFT w 5PXBSET'BTUFS3VCZ)BTI5BCMFT w IUUQTEFWFMPQFSTSFEIBUDPNCMPHUPXBSET GBTUFSSVCZIBTIUBCMFT